Place the pork, ginger, garlic and water chestnuts in a food processor with salt & pepper to taste.Process for 15 to 20 seconds.Add the soy sauce and sugar and process for a further 2 seconds.Form into small balls.

Heat the oil in a pan, add the meat balls and fry for 10 minutes, until crisp.Add the sauce ingredients to the pan and stir until blended and heated through.